How do the tests for coronavirus work?
Across the world, countries are scrambling to increase their testing capacity for the virus — how are these tests carried out and how do they work? more
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09-Aug-2018
The idea for this graphic came to me whilst saving the chilli peppers from a forlorn looking, aphid-infested chilli plant that’s probably on its metaphorical last legs. I thought it would be quite interesting to look at the origin of the heat in chilli peppers, and how this can be quantified.
A family of compounds called capsaicinoids are responsible for the heat of chillies; within this family, several different compounds are found in the various varieties of chillies, but the dominant compound is capsaicin, a vanilloid, shown in the graphic.
How do the tests for coronavirus work?
Across the world, countries are scrambling to increase their testing capacity for the virus — how are these tests carried out and how do they work? more
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Coronavirus: How hand sanitisers protect against infections
As coronavirus continues its spread, panic-buying has swept supermarket shelves of hand sanitisers. What’s in these sanitisers and how effective are they in comparison to hand washing? This graphic takes a look. more